Ignition state
Accessory versus run. Some radios sleep and take the ID with them.
Factory radio
Every HMI hides the ID in a different garage.
We do not pretend one screenshot works for every model year. You tell us the screen you see. We tell you the next tap.
Audio vs. apps tile
Satellite is not always under “radio.” We hunt the real path.
Sticker backup
If the screen will not show it, we talk through faceplate and glovebox labels — still parked.